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    Did you mean Russell's sign?
    GlossaryRussell's sign

    presence of knuckle calluses from self-induced vomiting

    Russell's sign refers to the presence of calluses or scars on the knuckles or back of the hand, typically caused by repeated self-induced vomiting. This physical sign is often associated with bulimia nervosa, as individuals may use their fingers to induce vomiting, leading to abrasions from contact with their teeth.

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